A fine award winning example of the Strutt epicyclic train clock shown by Andrew Read at the Midlands Model Engineering Exhibition. Bill Smith in the United States built and published home build details for this, one of the most interesting of single train skeleton clocks. First made in England by William Strutt in about 1830 it has a number of interesting and extremely unusual features not found in other clocks. Its 8-day, spring driven, train is epicyclic (planetary gearing) and involves a ring wheel of 4-1/2″ ID and 5-1/2 OD teeth. The motion work is based on the Ferguson Mechanical Paradox instead of the normal 12:1 gearing. To allow individual setting of the hands, the collets are of unusual design. Construction manual is available.

Photos by John Arrowsmith.